Water-based glue coating and uniformizing device for medical paper

Abstract

The utility model provides a water-based glue spreading and homogenizing device for medical paper. The water-based glue spreading and homogenizing device comprises a supporting frame, a conveying belt, a glue spreading roller, a glue homogenizing roller and the like. The gluing roller is arranged above the conveying belt and is tangent to the conveying belt, and the gluing roller is connected with a glue supply unit; the glue uniformizing roller is located behind the glue spreading roller, is also tangent to the conveying belt and is driven by a glue uniformizing motor, and the glue uniformizing motor is electrically connected with the industrial control board. The glue uniformizing roller is formed by combining a plurality of glue uniformizing rings, and the glue uniformizing rings are arranged on the same rotating shaft and rapidly installed on the supporting frame through an electromagnetic lock structure. In addition, a special coating is arranged on the outer side of the glue uniformizing roller to optimize performance, and the glue supply unit is reasonable in design to ensure uniform glue supply. The whole system further comprises a drying tunnel used for heating treatment, and the gluing effect is improved. Through the unique structure and design, the medical paper water-based gluing uniformity and the working efficiency are effectively improved.

Description

Technical Field

[0001] This utility model relates to a coating processing machine, and more particularly to a water-based coating and even coating device for medical paper. Background Technology

[0002] Medical paper is a special type of paper used in the medical industry and is widely used in the packaging of medical devices. This paper not only needs to meet basic physical properties, but also needs to have good sealing performance. The existing technology to solve this problem is to coat its surface with a layer of water-based adhesive, which is used to achieve heat sealing, improve the sealing effect between the paper and other materials, and reduce leakage problems.

[0003] However, the surface of medical paper is uneven, which can lead to inconsistent or uneven adhesive layer thickness when it is coated. This not only affects the appearance quality but also weakens the overall sealing performance of the material. The recessed areas may not achieve the desired bonding strength, while the raised areas may have excessive build-up, increasing costs and reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a uniform coating device for water-based adhesive coating of medical paper, thereby solving the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A medical paper water-based adhesive coating and leveling device includes a support frame, a conveyor belt mounted on the support frame, and the support frame being rotatably mounted on:

[0007] A glue-applying roller is positioned above and tangent to the conveyor belt, and is connected to a glue supply unit.

[0008] A glue-spreading roller is positioned behind the glue-applying roller along the direction of the conveyor belt movement. The glue-spreading roller is tangential to the conveyor belt. The glue-spreading roller is connected to the output shaft of a glue-spreading motor, and the glue-spreading motor is electrically connected to an industrial control board.

[0009] Furthermore, the glue-spreading roller is composed of multiple glue-spreading rings along the axial direction. The centers of the multiple glue-spreading rings are connected to the same rotating shaft through elastic elements evenly distributed along the radial direction. The elastic elements and the glue-spreading rings are rotatably connected through bearings.

[0010] As a preferred embodiment, the elastic element can be a rubber ring, a spring evenly distributed along the radial direction, or the like.

[0011] Furthermore, the glue supply unit includes a glue inlet pipe connecting the glue storage tank and the pressure pump, a glue storage cylinder is provided inside the glue coating roller, the glue inlet pipe is connected to the glue storage cylinder, the outer wall of the glue storage cylinder has a hole, and the surface of the glue coating roller is provided with a textured groove that connects to the inside of the glue storage cylinder.

[0012] Furthermore, a drying tunnel is provided at the end of the conveyor belt away from the coating roller and the leveling roller. A heating device is provided inside the drying tunnel and is electrically connected to the industrial control board. The heating device is preferably an infrared heating lamp.

[0013] Furthermore, a quick-installation structure is provided between the glue-spreading roller and the support frame, including: the support frame is rotatably connected to a rotating arm, the rotating arm is rotatably connected to the rotating shaft, the support frame is provided with an electromagnet, the rotating arm is made of magnetic materials such as iron, cobalt, nickel and their oxides, the electromagnet is energized to attract the rotating arm to achieve limiting, and the electromagnet is electrically connected to the industrial control board.

[0014] To enable the rotating arm to be disassembled and facilitate the installation, replacement and maintenance of the coating ring, the technical solution provided by this utility model also includes: the rotating arm is provided with a notch adapted to the rotating shaft, and the other end of the rotating shaft is hinged to the output shaft of the coating motor.

[0015] Furthermore, the rotating arm is located at both ends of the rotating shaft, and electromagnetic locks are provided on both sides. After unlocking, the entire roller can be removed.

[0016] To reduce or avoid friction caused by relative movement between adjacent uniform coating rings, the technical solution provided by this utility model further includes: magnets are respectively provided on both sides of the uniform coating ring, and adjacent uniform coating rings generate repulsive force through the magnets, and multiple uniform coating rings are fitted together by the magnetic force gap of the magnets.

[0017] Furthermore, the outer side of the coating roller is provided with an anti-stick coating, preferably a polytetrafluoroethylene coating or an organosilicon coating.

[0018] The advantages and beneficial effects of this utility model are as follows:

[0019] 1. The combination of a coating roller and a leveling roller enables the uniform application of water-based adhesive to medical paper. The coating roller is responsible for the initial application of adhesive, while the leveling roller further spreads the adhesive evenly, ensuring a consistent coating thickness on the surface of each sheet of medical paper.

[0020] 2. The coating roller consists of multiple coating rings connected to the rotating shaft via elastic elements. This structure allows the coating roller to adjust the pressure of each coating ring as needed to accommodate medical papers of different thicknesses or materials, improving the adaptability and flexibility of the coating process. An anti-stick coating is applied to the outer side of the coating roller to effectively prevent glue from adhering to the roller, keeping the equipment clean and extending its service life.

[0021] 3. Equipped with a drying tunnel and an internal infrared heating lamp, it can quickly dry the adhesive on medical paper, accelerate the production process, and ensure the adhesive cures, thereby improving product quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an enlarged structural schematic diagram of point A in this utility model;

[0024] Figure 3 This is an enlarged structural schematic diagram of point B in this utility model;

[0025] Figure 4 This is a schematic diagram of the adhesive roller in Example 1;

[0026] Figure 5 This is one of the structural schematic diagrams of the coating roller in Example 1;

[0027] Figure 6 This is one of the structural schematic diagrams of the coating roller in Example 1;

[0028] Figure 7 This is a schematic diagram of the heating device in Example 1;

[0029] Figure 8 This is a schematic diagram of the structure of the coating roller in Example 2;

[0030] In the figure: support frame 10, conveyor belt 11, industrial control board 12, glue coating roller 20, glue storage cylinder 21, hole 22, anilox groove 23, glue leveling roller 30, glue leveling motor 31, elastic element 32, rubber ring 321, spring 322, rotating shaft 33, magnet 34, anti-stick coating 35, glue leveling ring 36, rotating arm 40, notch 41, hinge 42, drying tunnel 50, heating device 51. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0032] Example 1

[0033] Please see Figures 1-7 A water-based adhesive coating and leveling device for medical paper includes a support frame 10, a conveyor belt 11 mounted on the support frame 10, and an adhesive coating roller 20 and a leveling roller 30 rotatably mounted on the support frame 10.

[0034] The glue-applying roller 20 is positioned above and tangent to the conveyor belt 11. The glue-applying roller 20 is connected to a glue supply unit, which includes a glue inlet pipe connecting a glue storage tank and a pressure pump. A glue storage cylinder 21 is provided inside the glue-applying roller, and the glue inlet pipe is connected to the glue storage cylinder 21. A hole 22 is provided on the outer wall of the glue storage cylinder 21, and a textured groove 23 is provided on the surface of the glue-applying roller 20 that connects to the inside of the glue storage cylinder 21.

[0035] A leveling roller 30 is installed behind the coating roller 20 along the movement direction of the conveyor belt 11. The leveling roller 30 is tangential to the conveyor belt 11 and connected to the output shaft of the leveling motor 31, which is electrically connected to the industrial control board 12. The leveling roller 30 is composed of multiple leveling rings 36 arranged axially. The centers of the multiple leveling rings 36 are connected to the same rotating shaft 33 by elastic elements 32 evenly distributed along the radial direction. In this embodiment, the elastic element 32 is a rubber ring 321. Magnets 34 are respectively provided on both sides of the leveling rings 36, so that the polarity of the magnets 34 on both sides of the leveling rings 36 is the same. The multiple leveling rings 36 are fitted together by the magnetic force of the magnets 34. A polytetrafluoroethylene anti-stick coating 35 is provided on the outer side of the leveling roller 30.

[0036] A rotating arm 40 is rotatably connected to a support frame 10, and the rotating arm 40 is rotatably connected to a rotating shaft 33. An electromagnet is provided in the support frame 10. The rotating arm 40 is made of magnetic materials such as iron, cobalt, nickel, and their oxides. When the electromagnet is energized, it attracts the rotating arm 40 to achieve a limiting position. The electromagnet is electrically connected to the industrial control board. The rotating arm 40 has a notch 41 adapted to the rotating shaft 33. When the glue-spreading roller 30 is in the working state of adhering to the conveyor belt 11, the notch 41 is opened from bottom to top in a direction away from the conveyor belt 11. The other end of the rotating shaft 33 is hinged 42 to the output shaft of the glue-spreading motor 31.

[0037] A drying tunnel 50 is provided at the end of the conveyor belt 11 away from the coating roller 20 and the leveling roller 30. A heating device 51 is provided inside the drying tunnel 50. In this embodiment, the heating device 51 is an infrared heating lamp. The power adjustment circuit of the heating device 51 is electrically connected to the industrial control board 12.

[0038] Example 2

[0039] Please see Figures 1-8 The only difference from Example 1 is that: there are two rotating arms symmetrically arranged on the left and right sides of the conveyor belt, and both rotating arms are locked by electromagnetic locks. The entire rotating shaft can be removed after use; the elastic element 32 is a spring 322 evenly distributed along the radial direction; and an anti-stick coating made of silicone is provided on the outer side of the glue roller.

[0040] Working principle:

[0041] The coating roller has an internal glue reservoir connected to an external glue tank and pressure pump via a glue inlet pipe. The glue is temporarily stored in the reservoir and slowly passes through the perforations and anilox grooves, ensuring a uniform and continuous glue supply. As the coating roller rotates, the glue is evenly applied from the reservoir through the perforations and anilox grooves onto the paper on the conveyor belt. The glue is concentrated in the reservoir, preventing the coating roller from shifting and avoiding the contamination that can occur with disc-type structures.

[0042] The leveling rings are connected to the same rotating shaft via elastic elements (such as rubber rings or springs). This design allows the leveling roller to adapt to paper of different thicknesses and to maintain appropriate pressure by floating relatively to ensure uniform glue distribution. The outer side of the leveling roller may also be coated with an anti-stick coating (such as PTFE or silicone) to reduce glue adhesion and facilitate cleaning. A rotating arm connects to the rotating shaft of the leveling roller and allows the entire leveling roller assembly to be disassembled for maintenance or replacement when needed. In Embodiment 1, the rotating arm is limited by an electromagnet activated; in Embodiment 2, an electromagnetic lock is used to lock the rotating arm. This design allows the operator to easily unlock the leveling roller assembly from the support frame, facilitating the replacement and maintenance of the leveling rings within the leveling roller.

[0043] The drying tunnel is located at the end furthest from the coating roller and the leveling roller, and is equipped with a heating device (such as an infrared heating lamp). The power adjustment circuit of the heating device is electrically connected to the industrial control board, which can adjust the temperature as needed to ensure that the coated paper dries quickly.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A medical paper water-based adhesive coating and leveling device, comprising a support frame (10), wherein the support frame (10) is provided with a conveyor belt (11), characterized in that, The support frame (10) is rotatably equipped with: A glue-applying roller (20) is positioned above and tangent to the conveyor belt (11), and the glue-applying roller (20) is connected to a glue supply unit. A glue-spreading roller (30) is arranged behind the glue-coating roller (20) along the movement direction of the conveyor belt (11). The glue-spreading roller (30) is tangential to the conveyor belt (11). The glue-spreading roller (30) is connected to the output shaft of the glue-spreading motor (31). The glue-spreading motor (31) is electrically connected to the industrial control board (12). The glue-spreading roller (30) is composed of multiple glue-spreading rings (36), and the center of each glue-spreading ring (36) is connected to the same rotating shaft (33) through elastic members (32) evenly distributed along the radial direction.

2. The water-based adhesive coating and leveling device according to claim 1, characterized in that: The elastic element (32) is a rubber ring (321) or a spring (322) evenly distributed along the radial direction.

3. The water-based adhesive coating and leveling apparatus according to any one of claims 1-2, characterized in that: A quick-installation structure is provided between the glue-spreading roller (30) and the support frame (10), which includes: the support frame (10) is rotatably connected to a rotating arm (40), the rotating arm (40) is rotatably connected to the rotating shaft (33), the support frame (10) is provided with an electromagnet, the rotating arm (40) is made of at least one of iron, cobalt, nickel and their oxides, the electromagnet is energized to attract the rotating arm (40) to achieve a limit position, and the electromagnet is electrically connected to the industrial control board (12).

4. The water-based adhesive coating and leveling device according to claim 3, characterized in that: The rotating arm (40) is provided with a notch (41) adapted to the rotating shaft (33). When the glue roller (30) is in the working state of adhering to the conveyor belt (11), the notch (41) limits the rotating shaft (33). The other end of the rotating shaft (33) is hinged (42) to the output shaft of the glue roller motor (31).

5. The water-based adhesive coating and leveling device according to claim 3, characterized in that: The rotating arms (40) are two symmetrically arranged on both sides of the support frame (10), and both rotating arms (40) are locked by electromagnetic locks.

6. The water-based adhesive coating and leveling device according to claim 1, characterized in that: Magnets (34) are respectively provided on both sides of the uniform adhesive ring (36). The magnets (34) have the same outward polarity, and the multiple uniform adhesive rings (36) are connected by the magnetic gap of the magnets (34).

7. The water-based coating and leveling apparatus according to any one of claims 1-2, characterized in that: The outer side of the glue-spreading roller (30) is provided with an anti-stick coating (35).

8. The water-based adhesive coating and leveling device according to claim 1, characterized in that: The glue supply unit includes a glue coating roller (20) with a glue storage cylinder (21) inside. The glue storage cylinder (21) is connected to a glue storage tank and a glue inlet pipe of a pressure pump. The glue inlet pipe is connected to the glue storage cylinder (21). The outer wall of the glue storage cylinder (21) has a hole (22). The surface of the glue coating roller (20) is provided with a textured groove (23) that connects to the glue storage cylinder (21).

9. The water-based adhesive coating and leveling device according to claim 1, characterized in that: The conveyor belt (11) is also provided with a drying tunnel (50) at one end away from the coating roller (20) and the leveling roller (30). A heating device (51) is provided inside the drying tunnel (50), and the heating device is electrically connected to the industrial control board.

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